:root {
  --paper: #f6f7f2;
  --paper-deep: #e7ebe4;
  --ink: #13231f;
  --muted: #5d6a64;
  --line: #cbd1c8;
  --accent: #176b55;
  --accent-dark: #0d4c3c;
  --accent-soft: #dfe9e2;
  --white: #ffffff;
  --max-width: 980px;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: 3px;
  background: var(--accent);
}

a {
  color: var(--accent-dark);
  text-decoration-color: rgba(13, 76, 60, 0.45);
  text-underline-offset: 4px;
}

a:hover { text-decoration-color: currentColor; }

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 9px 13px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(19, 35, 31, 0.12);
  background: rgba(246, 247, 242, 0.9);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-name {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.16rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-name::after { content: "."; color: var(--accent); }

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 26px;
}

nav a {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

nav a:hover { color: var(--accent-dark); }

main > section {
  padding: 78px 0;
  border-bottom: 1px solid var(--line);
}

.intro {
  padding-top: 94px;
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 62px;
  align-items: start;
}

.profile-photo {
  width: 250px;
  height: 250px;
  display: block;
  object-fit: cover;
  border: 1px solid var(--accent);
  border-radius: 2px;
  box-shadow: 15px 15px 0 var(--accent-soft);
}

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 { font-family: var(--serif); }

h1 {
  margin-bottom: 7px;
  font-size: clamp(2.8rem, 6vw, 4.25rem);
  font-weight: 400;
  letter-spacing: -0.048em;
  line-height: 1.03;
}

h2 {
  margin-bottom: 34px;
  font-size: clamp(1.95rem, 3.5vw, 2.55rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

h2::after {
  content: "";
  width: 34px;
  height: 2px;
  margin-top: 13px;
  display: block;
  background: var(--accent);
}

h3 {
  margin-bottom: 2px;
  color: var(--accent-dark);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.4;
}

.role {
  margin-bottom: 27px;
  color: var(--accent-dark);
  font-family: var(--sans);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.intro-copy > p:not(.role) { margin-bottom: 15px; }

.research-interests {
  margin-top: 25px;
  padding-top: 21px;
  border-top: 1px solid var(--line);
  color: #40504a;
}

.personal-note { color: var(--muted); }

.profile-links {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.profile-links a {
  min-height: 36px;
  padding: 6px 11px;
  display: inline-flex;
  align-items: center;
  border: 1px solid #bac5bd;
  background: rgba(255, 255, 255, 0.45);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.profile-links a:hover {
  border-color: var(--accent);
  background: var(--white);
}

.entry {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.entry:last-child { padding-bottom: 0; }

.entry-heading {
  display: flex;
  justify-content: space-between;
  gap: 34px;
}

.entry-heading p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.entry-heading .date {
  flex: 0 0 auto;
  padding-top: 4px;
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
}

.employer-entry > h3 { margin-bottom: 16px; }

.role-group {
  padding-left: 18px;
  border-left: 2px solid var(--accent-soft);
}

.role-group + .role-group { margin-top: 24px; }

.role-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 28px;
}

.role-row + .role-row { margin-top: 7px; }

.role-title {
  margin-bottom: 0;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 700;
}

.role-title span {
  color: var(--muted);
  font-weight: 400;
}

.role-row .date {
  flex: 0 0 auto;
  margin-bottom: 0;
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
}

.entry ul {
  max-width: 850px;
  margin: 19px 0 0;
  padding-left: 22px;
}

.entry li { margin-top: 8px; }
.entry li::marker { color: var(--accent); }

.role-group ul { margin-top: 13px; }

.internship-item + .internship-item { margin-top: 20px; }

.role-summary {
  max-width: 800px;
  margin: 5px 0 0;
  color: var(--muted);
}

.compact-entry > p,
.education-entry > p {
  max-width: 760px;
  margin: 15px 0 0;
  color: var(--muted);
}

#publications {
  margin: 0 -30px;
  padding: 78px 30px;
  border-bottom: 0;
  background: rgba(223, 233, 226, 0.72);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.section-heading a {
  margin-top: 10px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.publication-list {
  margin: 0;
  padding-left: 29px;
}

.publication-list li {
  margin-bottom: 27px;
  padding-left: 9px;
}

.publication-list li::marker {
  color: var(--accent);
  font-family: var(--serif);
  font-weight: 700;
}

.publication-list li:last-child { margin-bottom: 0; }

.publication-list p { margin-bottom: 6px; line-height: 1.58; }
.publication-list a { font-size: 0.8rem; font-weight: 700; }
.publication-list .me { color: var(--accent-dark); font-weight: 800; }

.education-entry { padding-block: 25px; }

.two-column-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.two-column-section h2 { margin-bottom: 22px; }
.two-column-section ul { margin: 0; padding-left: 21px; }
.two-column-section li::marker { color: var(--accent); }
.two-column-section p { margin-bottom: 11px; }

footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner p { margin: 0; }

.not-found {
  min-height: 100vh;
  padding: 90px 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.not-found .section-label {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .header-inner { padding: 14px 0; align-items: flex-start; }
  nav { gap: 8px 16px; }
  .intro { grid-template-columns: 1fr; gap: 42px; padding-top: 62px; }
  .profile-photo { width: 220px; height: 220px; }
  main > section { padding: 60px 0; }
  #publications { margin: 0 -20px; padding: 60px 20px; }
  .entry-heading { display: block; }
  .entry-heading .date { margin-top: 7px; white-space: normal; }
  .role-row { display: block; }
  .role-row .date { margin-top: 2px; white-space: normal; }
  .two-column-section { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 500px) {
  .container { width: min(calc(100% - 30px), var(--max-width)); }
  .header-inner { display: block; }
  nav { margin-top: 8px; justify-content: flex-start; }
  nav a { font-size: 0.67rem; }
  h1 { font-size: 2.75rem; }
  .profile-photo { width: calc(100% - 15px); max-width: 280px; height: auto; aspect-ratio: 1; }
  .section-heading { display: block; }
  .section-heading a { display: inline-block; margin: -17px 0 29px; }
  #publications { margin-inline: -8px; padding-inline: 8px; }
  .footer-inner { display: block; }
  .footer-inner p + p { margin-top: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}